class_docstr: Raw I/O implementation the input and output stream is resettable.
code: def set_output_stream(self, output_stream):
      self._output_stream = output_stream
  
file_path: flink/flink-python/pyflink/fn_execution/ResettableIO.py
imports: import io
label_desc: Use image node_id 3 for calling the ResettableIO obj's underlying member method code with example usage: obj.set_output_stream(output_stream) without return types